I’m a (junior) stress engineer and have been tasked with sizing a lug. Various loadcases have been run through FEM and loads have been distributed into the lug bolt for each. In other words, each loadcase has its own set of x, y, and z loads at the bolt.
An initial analysis (spreadsheet) was run, where the lug was sized using the max x, y, and z loads across all loadcases. My understanding is that this is conservative.
Now I’m being asked to take out conservatism by applying case consistent loads. Would I go about that just by doing an analysis for each loadcase with a max value? Am I understanding the meaning of “case consistent”?
As an example:
Loadcase 1 has no maxes, so I don’t even look at it
Loadcase 2 has the max x, so I analyze the lug using all values from this loadcase
Loadcase 3 has no maxes, so I don’t even look at it
Loadcase 4 has the max y, so I analyze the lug using all values from this loadcase
Loadcase 5 has the max z, so I analyze the lug using all values from this loadcase
Sorry for the long post, but any help is appreciated.